Hello everyone
I am trying to build an meta search engine in
java with
struts framework .!!!
Getting an null pointer exception did every possible mean to remove it ... Working on netbeans
ide
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: java.lang.NullPointerException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
java.lang.NullPointerException
org.meta.search.IR.Bo.TestingHtmlParser.searchEngines(TestingHtmlParser.java:204)
org.meta.search.IR.Bo.TestingHtmlParser.getSearchResultsFromSearchEngines(TestingHtmlParser.java:175)
org.meta.search.IR.Bo.TestingHtmlParser.getParsedContents(TestingHtmlParser.java:118)
org.meta.search.IR.Bo.TestingHtmlParser.getSearchResults(TestingHtmlParser.java:87)
org.meta.search.IR.Bo.AggregationWrapper.getIndividualSearchResult(AggregationWrapper.java:168)
org.meta.search.IR.Bo.AggregationWrapper.getSingleAggregatedResult(AggregationWrapper.java:83)
org.meta.search.IR.Bo.AggregationWrapper.getAggregationResult(AggregationWrapper.java:64)
org.meta.search.IR.Bo.SearchSeparateEngines.searchProcess(SearchSeparateEngines.java:68)
org.meta.search.IR.Action.SearchAction.getNormalSearch(SearchAction.java:133)
org.meta.search.IR.Action.SearchAction.execute(SearchAction.java:41)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
Any idea what possibly could have gone wrong !!!
Regards
Indiz